文献类型：期刊文献

英文题名：Improving physicochemical properties of upgraded Indonesian lignite through microwave irradiation with char adsorbent

作者：Zhou, Fan[1,2] Cheng, Jun[1] Liu, Jianzhong[1] Zhou, Junhu[1] Cen, Kefa[1]

第一作者：Zhou, Fan;周凡

通信作者：Cheng, J[1]

机构：[1]Zhejiang Univ, State Key Lab Clean Energy Utilizat, Hangzhou 310027, Zhejiang, Peoples R China;[2]Chinese Acad Forestry, Res Inst Wood Ind, Beijing 100091, Peoples R China

年份：2018

卷号：218

起止页码：275-281

外文期刊名：FUEL

收录：;EI(收录号：20180604775705);Scopus(收录号：2-s2.0-85041403401);WOS:【SCI-EXPANDED(收录号:WOS:000429415500029)】；

基金：This study was supported by National Key Research and Development Program of China-China (2016YFB0600505), and National Natural Science Foundation-China (51676171).

语种：英文

外文关键词：Lignite; Microwave irradiation; Pyrolysis; Char; Upgrading

摘要：To upgrade Indonesian lignite by significantly reducing volatile matter content, char adsorbent was employed to accelerate lignite pyrolysis through microwave irradiation. Physicochemical properties of pyrolyzed lignite were determined with the assistance of char adsorbent on Fourier-transform infrared spectroscopy, X-ray photo-electron spectroscopy, X-ray spectroscopy, N-2 adsorption porosimetry, and contact angle analysis. Under the same microwave power of 800 W and irradiation time of 12.5 min, the lignite temperature remarkably increased from 150 degrees C to 656 degrees C with the aid of 10 g char adsorbent. Its apparent aromaticity increased from 0.50 to 0.97. The relative content of superficial carbon functional groups attributed to pi-pi* transitions increased from 1.18% to 6.71%. The volatile matter content (dried basis) markedly decreased from 48.94% to 6.47% due to the release of volatile compounds in the lignite.